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Semi-Classical Theory for Non-separable Systems
Semi-Classical Theory for Non-separable Systems

Quantum Biological Switch Based on Superradiance Transitions
Quantum Biological Switch Based on Superradiance Transitions

... large values of κS. Up to some extent, this is in agreement with an intuitive interpretation: if the coupling strengths to both sinks are extremely strong, particles will be absorbed by both sinks with the same efficiency. We can use these results to define “classical transport” as one occurring throug ...
Ab initio simulations of core level spectra Ida Josefsson
Ab initio simulations of core level spectra Ida Josefsson

... The world energy consumption is growing rapidly. Fossil fuels still provide 80 percent of the energy consumed in the world [1]. Both for environmental reasons and because the resources are finite, understanding and developing renewable energy sources is however desirable. The sunlight reaching the E ...
Postprint
Postprint

... the single-photon ionization from the 2s and the 2p subshells of Ne atoms in gas phase [1]. The “streak camera” technique used in these experiments [2] implied nontrivial ejection times of the photoelectrons, depending on the sub-shell from which they originate. Similar delays between the ejection t ...
Electron Cloud Experiments, Simulation and Cure
Electron Cloud Experiments, Simulation and Cure

... D) Clearing electrode •An electrode is a candidate for clearing the electrons. •Unlike the solenoid, the electrode works in a strong magnetic field. i) Multi-wire electrode •Electrodes are negatively biased. They push electrons to the wall immediately after the electrons are created on the wall. •R ...
Solution
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THE PHILOSOPHY OF PHYSICS
THE PHILOSOPHY OF PHYSICS

... slightly differently) is connected with the fact that we cannot imagine how we might even begin to determine by observational means whether or not (say) every single particle in the world had somehow been transported, last night as we lay sleeping, by exactly five hundred thousand miles, to the left ...
CHAPTER 5 The Bohr Model of the Atom
CHAPTER 5 The Bohr Model of the Atom

A critical analysis of the hydrino model
A critical analysis of the hydrino model

... that have been interpreted in support of a new model of the hydrogen atom [1, 2, 3, 4]. This model predicts the existence of new orbital states for the electron of the hydrogen atom with enhanced binding energy compared to the known hydrogen ground state. These new states have been named hydrinos. A ...
Lecture 12: Holevo`s theorem and Nayak`s bound
Lecture 12: Holevo`s theorem and Nayak`s bound

Size-dependent energy levels of CdTe quantum dots
Size-dependent energy levels of CdTe quantum dots

... Plotting these transition energies as a function of the excitation photon energy in Fig. 4, we can find straight lines, 1, 2, and 3, converging on the bulk-energy fit the experimental data. However, slopes of straight lines 4 and 5 are a little different from those of experimental data. Nevertheless ...
Towards UV Finiteness of Infinite Derivative Theories of Gravity and
Towards UV Finiteness of Infinite Derivative Theories of Gravity and

... dressed vertices, n-loop, 2- & 3-point diagrams constructed out of lower-loop, 2- & 3-point diagrams become finite in the UV (UV) with respect to internal loop momentum k µ , that is, no UV divergences arise and no new counterterm is required. In Ref. [39] the UV behaviour of scattering diagrams wit ...
High Quantum Yield, Low Emittance Electron Sources
High Quantum Yield, Low Emittance Electron Sources

Quantum Field Theory Frank Wilczek
Quantum Field Theory Frank Wilczek

... the context of the standard model, Lorentz and gauge invariance) turn out to be amazingly powerful, as will emerge from our further discussion below. The eld concept came to dominate physics starting with the work of Faraday in the mid-nineteenth century. Its conceptual advantage over the earlier ...
From photoelectric effect to digital imaging - beim Quantum Spin
From photoelectric effect to digital imaging - beim Quantum Spin

An Infrared Effective Theory of Quark Confinement Based on
An Infrared Effective Theory of Quark Confinement Based on

... Also a mass term may arise naturally.7),8) Other higher-order self-interactions, if any, are infrared irrelevant. Radiative corrections may also be important. The exact result of the summation needs an extensive study of the properties of monopoles in ' QeD. Here we only assume that such interaction ...
Fermion Doubling in Loop Quantum Gravity - UWSpace
Fermion Doubling in Loop Quantum Gravity - UWSpace

... University of Waterloo for providing me with complete academic freedom to explore the deepest aspects of science and theoretical physics. Among the faculty, I would like to thank Ted McGee, for investing a large amount of his own time into improving my writing process, and Steve Furino, for his sugg ...
1 Introduction and Disclaimer
1 Introduction and Disclaimer

... We will sketch the computation by Maulik and Okounkov of the quantum cohomology of Hilbn C2 . As you will see, the proof is somewhat indirect, but the methods used apply to general quiver varieties, and yield a variety of other great results. See [3] for a more direct proof. Due to limitations in sp ...
String model of the Hydrogen Atom
String model of the Hydrogen Atom

institute of chemical technology
institute of chemical technology

... Physics is a fundamental science close to nature and involves study of matter and its motion in space- time, energy and force. Physics is both important and influential because advances in its understanding have often translated into newer technologies, which are of interdisciplinary consequences. A ...
Generation of Attosecond X-ray and gamma
Generation of Attosecond X-ray and gamma

... Figure 1 shows the schematic diagram. A few-cycle pulsed laser propagates in the +zdirection and an electron bunch co-propagates with the laser. The laser is carrier envelope phase (CEP)-locked and polarized in the x-direction. Both of the laser and the electron bunch goes through a single-period wi ...
High Performance Quantum Computing
High Performance Quantum Computing

Quantum Physics 2005
Quantum Physics 2005

... particle. We have found that if one wants to specify the position of a Gaussian wave packet, then: )x)p = h • Similarly, angular frequency and time are conjugate variables in wave analysis. (They appear with one another in the phase of a harmonic wave.) )+)t = 1 • Since energy and frequency are rela ...
Representation of Quantum Circuits with Clifford and π/8 Gates
Representation of Quantum Circuits with Clifford and π/8 Gates

... that performs the unitary operation P = T 2 is known as the Phase gate. Quantum circuits over the basis {H, P, CN OT } is usually called stabilizer circuits or clifford circuits. The Gottesman-Knill theorem says that circuits over this basis {H, P, CN OT } are not more powerful than classical comput ...
Quantum Hall Effect near the Charge Neutrality Point in a Two
Quantum Hall Effect near the Charge Neutrality Point in a Two

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Quantum electrodynamics



In particle physics, quantum electrodynamics (QED) is the relativistic quantum field theory of electrodynamics. In essence, it describes how light and matter interact and is the first theory where full agreement between quantum mechanics and special relativity is achieved. QED mathematically describes all phenomena involving electrically charged particles interacting by means of exchange of photons and represents the quantum counterpart of classical electromagnetism giving a complete account of matter and light interaction.In technical terms, QED can be described as a perturbation theory of the electromagnetic quantum vacuum. Richard Feynman called it ""the jewel of physics"" for its extremely accurate predictions of quantities like the anomalous magnetic moment of the electron and the Lamb shift of the energy levels of hydrogen.
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